首页
登录
职称英语
The camera is often thought to be a modem invention. But as early 1727, a Ge
The camera is often thought to be a modem invention. But as early 1727, a Ge
游客
2023-07-15
11
管理
问题
The camera is often thought to be a modem invention. But as early 1727, a German physicist 【B1】______ that light darkens silver salt in a chemical 【B2】______ . Using a camera, a big box with a small hole to let the light in, he made 【B3】______ images on the salt. Silver salt is still the 【B4】______ of film today. Then a French scientist made the first 【B5】______ picture by using a special 【B6】______ of metal sensitized with silver salt. A photography he made in 1826 still 【B7】______ . The painter, Daguerre improved on the process 【B8】______ placing common salt the kind we eat on the metal. This was in 1839, 【B9】______ , but the problem was the printing of photographs, and it wasn’t until other scientists developed the kind of paper we now use, that good printing was possible and photograph become truly modem. In 1860, Matthew Bradey was able to take his famous pictures of the American Civil War, 【B10】______ . In the 20th century, George Eastman of the United States simplified film developing, and Dr. Edwin Land invented the so-called "instant" camera with self developing film. 【B11】______ it has taken more than one hundred years for the camera to reach its present condition of technical refinement. [br] 【B4】
选项
答案
base
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2839748.html
相关试题推荐
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolo
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolo
Forthousandsofyears,peoplethoughtofglassassomethingbeautifultolo
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
Therearealotofgoodcamerasavailableatthe【B1】______.Mostofthesearema
[originaltext]M:So,whatareyourthoughtsonthisproject?Tobehonest,I’m
随机试题
Allthewaydown,theboyshadbeenfindingtheoldthingsinsteadofthene
BusinessesThriveonTransparencyStakeholdersscrutiniz
Peopleappeartobeborntocompute.Thenumericalskillsofchildrendevelo
监督承包人对已完工程项目中所存在的施工质量缺陷进行修复的是( )。A.监理机构
A.点(0,0)不是f(x,y)的极值点 B.点(0,0)是f(x,y)的极大
截至2015年底,中国创业投资各类机构数已达1775家,同比增长14.4%。其中
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
对大型地下商业建筑进行防火检查时,发现下沉式广场防风雨棚的做法中,错误的是()A
原发性疱疹性龈口炎多见于A.婴幼儿 B.学龄前儿童 C.青少年 D.中年人
下列成本加酬金合同的优点中,对业主有利的有()。A.可以确定合同工程内容、工程
最新回复
(
0
)